Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ames!vsi1!altos86!dtynan From: dtynan@altos86.Altos.COM (Dermot Tynan) Newsgroups: comp.os.minix Subject: Re: vi under minix Message-ID: <3548@altos86.Altos.COM> Date: 19 Jul 89 18:55:58 GMT References: <1385@bruce.OZ> <2892@ast.cs.vu.nl> <5060@ficc.uu.net> Organization: Altos Computer Systems, San Jose, CA Lines: 22 In article , jac@paul.rutgers.edu (Jonathan A. Chandross) writes: > > Actually, Bill Joy (and Mark Horton, I think) started out using ed, but > soon abandoned it when it became clear that it wouldn't work. They wrote > ex instead, and put vi on top of it. This is, reportedly, no ed code left > in vi/ex. > > Jonathan A. Chandross I don't think this is true. Berkeley is very good about releasing code which is free of AT&T source. Case in point: Mail. Bill Joy used 'ed' to develop 'ex' (which later became 'vi'), and used the bourne shell (/bin/sh) to develop his C-shell. Because of this, neither product is available from Berkeley, without a source licence. Having looked at both shells, there doesn't seem to be much correlation, but then I'm not an Attorney :) - Der -- dtynan@altos86.Altos.COM (408) 946-6700 x4237 Dermot Tynan, Altos Computer Systems, San Jose, CA 95134 "Far and few, far and few, are the lands where the Jumblies live..."